Shock-absorbing spring



Aug. E@

H. J. DNGER SHOCK ABSORBING SPRING Filed March l5 1924 4 Sheets-Sheet 2 I A TTU/e514 Aug. w A926,

H. J. DINGER SHOCK ABSORBING SPRING Filed March l5, 1924 4 Sheets-Sheet 3 NV NTO/e BY M l TMR/Ey 1,595,078 H. J. DINGER SHOCK ABSORBING SPRING Aug. 10 1926.

Filed March 15 1924 4 sheets-sheet 4 Patented Aug. 10, 1926.

UNITED STATES 1,595,078 PATENT ortica.

HAEOLD'J. EINGEE, or` WHEELING, WEST VIRGINIA, AssiGNon 0E ,oNE-HA'LE To c. n; EoLLAsoN, 0E WHEELING, WEST VIRGINIA.

- SHOCK-ABSORBING SPRING.

Application filed March 15, 1924.

This invention relates broadly to vehicle springs, vand more speciiically to a combined cushioning spring and recoil check for vehicles.

The primary object of the invention is to provide a simple and comparatively inexpensivev device whereby is effected in large measure a reduction in the vibratory movements yof road vehicles to which it is applied.

A further object is to provide a` device which effectively prevents not only the transmission of primary roadrhoclrs to the frame and body of the vehicle,vbut also such secondary shocks as ordinarily result from rebounds or recoil forces.

In describing the invention in detail, reference is herein had to the accompanying` drai'vings, in which- Figure 1 is a central longitudinal section of the invention, illustrating its application;

Figure 2 is an enlarged detaill section of an end portion of the spring enclosing cylinder;

Figure 3 is an end view of the same;

Figure t is an enlarged side'elevation of the cylinder support;

Figure 5 is anvend elevation of the same; y

Figure 6 is an enlarged side elevation of a cylinder-carried bracket;

Figures 7 and 8 are,'respectively, an outer end elevation and a top plan view of the same;

Figures 9 and 10 are lviews similar to Figs. 4and 5, respectively, illustrating a form of support employed when the invention is modified to embody two parallel cylinders;

Figures 11, 12 and 13 are views similar to Figs. 6, 7 and 8, respectively, showing the form of cylinder-carried bracket employed. in connection with two cylinders;

Figures 14 and 15 are, respectively, a side elevation and an outer end elevation of the bell-crank employed in connection with the two-cylinder type of the invention;

Figure 16 is a view similar to Fig. l, illustrating a modified form of the invention in which a fluid isemployed for cushioning rebound forces;

Figure 17 is an enlarged detail section of an end portion of the cylinder shown in Fig. 16; and- Figure 18 is a section on line 18-18, Fig. 17.

Referring particularly to Figs. 1 to 8 of Seria1 Nfo. 699,524.

the drawings, the reference numeral 1 y'indicatcs an axle of a vehicle, and 2 a side member ofthe frame which is supported over said axle. Rigidly attached to said axle, as by means of the clamp-like support shown in Figs. 1, si and 5, is a hollow tubular member or cylinder 3, the same being carried at right angles to said axleV and having its opposite ends extending forwardly and rearwardly from said axle throughout an ap-- Said support, herev in shown, comprises a pair of clamp mempropriate distance.

bers 4i and 5 which complementally embrace the axle 1, and a clamp member 6 which complements the. member 5 in embracing said cylinder 3. Bolts 7 of U-shape directed through the members 1i, 5 and 6 serve to secure said members in a position tightly clamping the cylinder to the axle.

Rigidly mounted upon the cylinder adjacent to each of its opposite ends is the sleeve portion of an upstanding bracket 8 which has an arm 8a. The arms 8a of the brackets mounted upon the front and rear ends of said cylinder extend, respectively, forwardly and rearwardly beyond said ends and constitute supports upon which are pivotally mounted the angular portions of bellcrank levers 9. The foremost of'said levers has one arm thereof extending forwardly and pivotallyattaohed at its ends to a bracket 10 which is fixed to the side frame 2 of the vehicle. The other arm of said foremost leverV 9 has a downward and forward inclination and has pivotally attached thereto an u end of a link 11 which has its opposite end pivotally attached to the projecting end of a plunger rod 12. Said rod carries upon its inner end a head or plunger 13 and is longitudinally movable within said cylinder. A similar rod 14 and plunger 15 is operable within the opposite end of the cylinder, and the projecting end of said rod 14 has connection through a pivoted link 16 with the downwardly and rearwardly inclined arm of the rearmost of the bell-crank levers 9. The other arm of the last mentioned lever is pivotally connected to the adjacent end of the VV,frame or to a pivoted link 17 having connection with said frame, as shown.

Interposed between the two plungers is a spiral compression spring 18 which normally maintains said yplungers in the widely separated relative positions shown in f-Fig. 1. Said spring serves as a buffer for yieldingly resisting and absorbing primary road shocks, which shocks induce relative appro-ach of the axle 1 and trame 2 and which act through the link and lever mechanism hereinbetore described to thrust the plunger inward with respect to the cylinder.

Each of the plunger rods is movable .throuUh a suitable 'uide as the lue 19 which is removably mounted in each end of the cylinder 3. interposed between each of said plugs and the adjacent plunger and disposed in encircling relation to the plunger rod is a compression spring 20. Said springs 20 are designed to yielding-ly retard the return, or separating, movements of the plungers induced by the rebound or recoil torce exerted by the buffer spring 18 following the abnormal compression to which the latter is subjected, as aforesaid, and thus to absorb a very large proportion Iof the secondary shocks induced by such rebounds.

In the modified Yform of the invention illustrated in Figs. 9 to 15, inclusive, a pair of parallel cylinders 3 are substituted for the single cylinder 3, and the forms of the parts associated therewith are accordingly changed, the clamp-like cylinder supports being shaped for the reception ot two cylinders, as shown in Figs. 9 and l0, braclzets 8 adapted for mounting upon two cylinders being provided, as shown in Figs. 12 and 13, and bell-crank levers 9 'for attachment to said levers being employed, as shown in Figs. 14 and 15.

In the modilication illustrated in Figs, 1G to 18, inclusive, the springs 2O are omitted and the cylinder 3 is shown as filled with a suitable fluid, as oil. Passages or ports, as 21, provided in the plungers 13 and 15" permit of the passage of the fluid from one side of the plunger to the other. Said fluid acts inV an obvious manner to retard the movements of said plungers and thus to cushion shocks and reduce vibration between the vehicle aXle and frame.

TVhat is claimed is- 1. The combination with a vehicle axle and trame, of a cylinder disposed transversely with respect to and supported by said axle, plungers movable within the opposite end portions of said cylinder, rods carrying said plungers having their ends projecting outward from the opposite vends of said cylinder, guides for said rodcarried by the opposite ends of said cylinder, a buer spring interposed between said plungers, means interposed between said plungers and the adjacent guides for retarding separating movements of said plungers, supporting brackets carried by the opposite end portions ot said cylinder, and a bell-crank lever pivoted to each of `said brackets, one arm of said lever having pivoted connection with said rod and the other arm thereof having pivotal connection with the vehicle frame.

2. The combination with a vehicle axle and frame, of a cylinder disposed transversely with respect to and supported by said axle, plungers movable Lwithin the opposite end portions of said cylinder, rods carrying said plungers having their ends projecting outward from the opposite ends olf said cylinder, guides for said rod carried by the opposite ends ol' said cylinder, movement-retarding cushioning means interposed between said plungers, means within the end portions of said cylinder for yieldingly retarding separating movements ot said plungers, a. supporting bracket carried on each end of said cylinder, anda bell-crank lever pivotally carried by said bracket, said lever having one arm thereof pivotally connected to said frame and its other arm pivotally connected to the adj acentplunger rod.

ln testimony whereof, l affix my signature.v

HAROLD J. DINGrER.n

Sli 

